基于DSP的微型飞行器空速计  

Airspeed meter of micro air vehicle based on DSP

作　　者：王秀琳[1] 曹云峰[1] 程月华[1] 陆广平[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《传感器与微系统》2006年第8期46-48,共3页Transducer and Microsystem Technologies

摘　　要：介绍了一种采用微差压传感器、微型放大器、微功耗数字信号处理器（DSP）设计的新型微型飞行器空速计。为了提高仪表低量程端测量精度，采用分段直线拟合法消除器件的非线性引起的误差；经实验室测试，空速在0～30m／s范围内，误差为±1．5m／s。且该空速计具有体积小、重量轻、功耗低、工作可靠等特点。A new technology of airspeed meter of micro air vehicle based on micro difference pressure senso, micro amplifier and DSP is introduced. In order to improve the precision of meter at a low range end, method of synthetical beeline is used to eliminate the nonlinear error. The test in the laboratory shows that error of airspeed is ± 1.5 m/s in the arangement of 0 ～ 30 m/s. The airspeed meter has many merits, such as small volume, light weight, low power consumption and high reliability etc.

关 键 词：微行飞行器 微差压传感器 空速计 数字信号处理器 非线性校正 

分 类 号：V241[航空宇航科学与技术—飞行器设计]